9a, Short of water in Claridge's (4)
11a Shanghai sailor by vessel (6)
12a, Nostalgic about small fragrance (11)
18a, Asian suit taken up by juggler (6,5)
Sorry no letters just trying to start doing Cryptics
When you put a question on this site, it helps if you put the actual paper it comes from. For this one you could have put Radio Times 13, then it helps others who are looking for help for the same crossword.